Sir John Audley Frederick Aspinall was an English mechanical engineer who served as Locomotive Superintendent of the Great Southern and Western Railway (GS&WR) of Ireland and Lancashire and Yorkshire Railway (L&YR) of England. He introduced vacuum brakes to his locomotives in Ireland, a trend which was followed in Britain, and designed several locomotives. He was also president of the Institution of Mechanical Engineers and of the Institution of Civil Engineers.
- Occupation
- civil engineer, engineer
- Position held
- chairperson, chairperson
- Citizenship
- United Kingdom
- Born
- August 25, 1851
